the-way-to-go_ZH_CN/eBook/examples/chapter_12/switch_input.go

package main

import (
	"fmt"
	"os"
	"bufio"
)

func main() {
		inputReader := bufio.NewReader(os.Stdin)
		fmt.Println("Please enter your name:")
		input, err := inputReader.ReadString('\n')

		if err != nil {
			fmt.Println("There were errors reading, exiting program.")
			return
		}

		fmt.Printf("Your name is %s", input)
	 // For Unix: test with delimiter "\n", for Windows: test with "\r\n"
		switch input {
			case "Philip\r\n":	fmt.Println("Welcome Philip!")
			case "Chris\r\n":	fmt.Println("Welcome Chris!")
			case "Ivo\r\n":	    fmt.Println("Welcome Ivo!")
			default: fmt.Printf("You are not welcome here! Goodbye!")
		}

	 // version 2:
	    switch input {
		    case "Philip\r\n":	fallthrough
		    case "Ivo\r\n":	    fallthrough
		    case "Chris\r\n":	fmt.Printf("Welcome %s\n", input)
		    default: fmt.Printf("You are not welcome here! Goodbye!\n")
	    }
	
	// version 3:
	    switch input {
	    	case "Philip\r\n", "Ivo\r\n":	fmt.Printf("Welcome %s\n", input)
	    	default: fmt.Printf("You are not welcome here! Goodbye!\n")
	    }
}